Rotary engine.



J. JAGERSBERGER & A. ZEMANN.

ROTARY ENGINE.

APPLICATION IILED MAR. 12, 1909.

Patented Jan.25, 1910.

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ROTARY ENGINE.

APPLIOATION FILED MAR.12, 1909.

Patented Jan. 25, 1910.

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ROTARY ENGINE. APPLICATION FILED MAR. 12. 1909.

Patented Jan. 25, 1910.

J. JAGERSBERGBR & A. ZEMANN.

ROTARY ENGINE.

APPLICATION FILED MAR. 12, 1909.

947,430. Patented Jan. 25, 1910. 5 SHBETS-SHEBT 4.

J. JAGERSBBRGER & A. ZEMANN.

ROTARY ENGINE.

APPLICATION FILED MAR. 12, 1909.

Patented Jan. 25, 1910.

5 SHEETS-SHEET 6.

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, UNITED STATES PATENT ()FFICE.

JOSEPH JAGERSBERGER AND ANTON ZEMANN, OF NEW YORK, N. Y.

ROTARY ENGINE.

Specification of Letters Patent.

Application filed March 12, 1909.

Patented Jan. 25, 1910.

Serial No. 482,897.

To all whom it may concern:

Be it known that we, J osnrn J AGERSBERGER and ANTON ZEMANN, the former a citizen of the United States and the latter a subject of the Emperor of Austria-Hungary, both residing at New York, in the county of New York and State of New York, have invented certain new and useful Im rovements in Rotary Engines, of which t e following "is a specification.

The present ,invention pertains to rotary engines and particularl to explosion engines, and has for its chief object to greatly simplif the construction thereof.

Anot er object of the present invention is to increase the efiiciency of the engine which 18 accomplished by providing a motor having two or more rotary istons, of which each will have a double unction, viz: suction at one side, compression on the other, and explosion at one side, discharge on the other, the functions of one iston alternating with those, of the succee ing .iston.

Our inventibn also ertains to tlie particular arrangement, nove construction and combination of parts which will be hereafter fully specified.

An explosion en 'ne of the construction shown and specifie in the present application can be advantageously used with auto mobiles and airships or flying machines where one of the chief requirements is to reduce the number of elements and the weight of the engine to a minimum.

W hile, as stated, our invention principally pertains to engines, the driving fluid of wh ch is gas, oil or other explosive mixtures, It IS understood that the same can be also used for steam and hydraulic power, in which case, accordingly some slight modifications of the construction will be necessary.

To make our invention more clear the same is illustrated in the accompanying drawing, in which similar reference characters denote corresponding parts and in which- Figure 1 is a central cross section of the engine; Fig. 2 a section on line 22 of Fig. 1; Fig. 3 a side view of the engine; Figs. 4 and 5 end views showin details of construction, and Figs. 6 and 7 iagrams illustrating the operation of the engine.

The engine consists of a casing composed of two dish-shaped sections 1, 1 (Fi 2),

in -which an annular space 1 is forme constltutlng the cylinder, and which-is provided with a discharge 2 and a suction opening 3 er At the inner or bottom wall of the annular cylinder 1 the opposite edges 10, 10 of the sections 1", 1 of the casin s are separated from each other to form w en the sections are joined an annular space in which the outer reduced portion 7 of the disk 7 that carries the pistons 4 is adapted-to revolve. At its ends this reduced ortion 7 is provided with circumferentia packin rings 11 and face rings 11 which are a apted to ti hten the crevices between the portion 7 o the disk 7 and the inner ed cs 10, 10' of the sections 1" and 1". The acerings 11 are pressed down in the grooves 11 formed in the faces or sides of the disk 7 a by springs 12 arranged in lateral bores 13 in the sections 1 and l and adjustable by means of screw bolts 13*. The sections 1 and 1 forming the casing and joined by screw bolts 14 (Figs. 1-4) are mounted upon the shaft by ball bearings 15 provided in the lateral extensions or bushings 16 of the socket 9 that contain packings l7 and are closed to the outside by caps 18.

The annular cylinder according to the number of pistons employed is divided into a number of compartments, (in the present example two) by means of radially movable slides or closers 19, the inner ends 19' of which are semicircularly curved and which carry a number of horseshoe-shaped elastic packing bands 20. These slides 19 project through slots 21. in the casing 1, 1" and are attached to or integral with pistons 21 which work in cylindrical casings 22 secured to the casing 1, 1 of the engine. The pistons carry packing rings 23and by the action of springs 24 tend to normally occupy the 1nner osition, in which the slides are pro ected inward dividing the cylinder 1 into tightly closed u compartments I and II (Fig. 6'). The sli esare diametrically opposed to one cates through a another and are caused to open during'a certain period by a mechanism that will be' hereafter fully specified.

Attached to the casing 1" of the 'motor is a compressor consisting of a cylindrical.

receptacle 25. This receptacle is provided with double valves, one formed as a hollow piston 27 having packin rings '26 and an outwardly projectin re uced hollow portion 28, and the ot er.being an ordinary back pressure valve 29, the seat 30 of which is formed in a' casing 31 project g from the casing 1, 1 ofthemotor. This valve 29 g has a guide rod 32 projecting toward thehollow extension 28 of the piston valve 27 and is normally held u on its seat by a spring33.

manner that during a certainperiod it will be caused to move. outward, establishing communication between one of the com artmentsof the cylinder 1 and receptac e through valve. 38 and pi e and allowing the fluid to be compresse into the receptacle 25' and hollow spaces of the piston 27.

' When the movement of the piston 27 is reversed the compressed fluid will cause the valve 29 to open, whereupon the compressed fluid will enter the other compartment of the cylinder 1.

From the diagrams Figs. 6 and 7 the modeof operation of the engine will be understood. Assumingthat the pistons are revolving in the direction of the arrow ax, then one of the pistons, say piston 4, in the position shown in full lines in Fig. 6, will at its rear just begin to draw in the driving fluid throu h openin 3 from asuitable reservoir (not s own). hand, will compress the fluid drawn into the cylinder by the preceding piston 4'. When the piston 4 reaches the position indicated by dotted lines the fluid will be sufficiently compressed to raise-the valve 38 from its seat, and as the compression action of the iston' 4 continues, the fluid will be pressed into the receptacle 25 through the 0 en valve 38 and pipe 35. Simultaneously t e piston valve 27 of the compressor begins its out ward stroke and establishes communication:

between the compressorand the compartment I of the annular cyiinder 1. Previous to this pistone' will have reached the posioccur.

begins the The receptac e 25 communicates v on one side' with one 0i the-compartments I of the annular cylinder 1 through a pas- 20 v ment into the 0 its forward end,on the other eev'aac tion shown in full lines in Fig. 7. i The compressed fluid now contained in the receptacle 25 will by the inward'movement of the piston valve 27 be still more compressed and finally cause by its pressure the opening of valve 29 and rush into the compartmentII of the cylinder 1 atthe rear of the piston 4, where by a suitable'igniter (not shown) the ignition and the explosion of the fluid will This will impart to the pistons a fresh impulse. As the piston 4 continues to revolve its forward end will expel through the discharge 2 the burned ases of the previous explosion that had ta on place 'at the rear of the piston 4'. .Then the piston 4 functions of the piston 4 and vice versa. The double function of each of the pistons is rendered possible by the provision of the radially operating slides 19 which as stated divide the annular cylinder 1 into separate tightly closed up compartments. At the moment whe'n,'during' the revolution of the pistons, the same approach the radial slides the latter are automatically moved outward to clear the path of the revolving pistons and thus do not hinder the continuous revolution of the latter. Immedia'tely-upon the passage of the latter from one compartment into the other the slides are vehemently thrust inward to again close up the compartments (Fig. 7).

We will now proceed with the description of the mechanisms which are designed to automatically operate the radial slides and the valves of the compressor.

secured to piston rods 39 which project outward from the pistons 21 carrying the closers 19 are cross bars 40, to the ends of which are secured rods 41 sliding in guide pieces 42. These rods carry rollers 43 which are adapted to coiiperate with cam disks 4E4 keyed upon the driven shaft 8., The projections 45 forming the cam portions are so admeasured and shaped that at a certainv moment when the pistons'a, 4 approach the slides, they will meet'the rollers 43 and begin tomove the latter and consequently the slides 19 outward and immediately upon the passage of the said istons from one comparttlie r causes the slides to be vehemently thrust inward.

The piston valve 27 of the compressor is secured to a cross bar 46, the ends of which carry eccentrics 47. Keyed upon spindles 48 borne in the .casin .1, 1" are toothed wheels 49, to the latera ly extended nave 50 ofv which the eccentrics 47 are keyed. Meshing with these toothed wheels are wheels v51 keyed on the shaft 8 of the motor. The eccentricity is so calculated that at the moment when one of the pistons 4, 4 approaches the inlet valve 38 of the compressor, the piston valve 27. of the latter will begin itsv outward stroke to establish communication between the compartment I and the receptacle 25, and as soon as the same piston-approaches the passage 34 of the compressor the said piston valve 27 Wlll begin its reverse'stroke, to still more compress the fluid now contained therein and to -force the highly compressed fluid into the compartment II of the cylinder 1 at the 1 rear of the revolving piston, in which it will be caused to explode. To provide for an efficient cooling of the engine, the cam disks 44 designed for the operation of the slides and the gears 51 are formed with ventilating blades 52, 53- which while revolving with high speed will draw fresh air to the engine, thereby cooling the latter. I

What we claim and desire 'to' secure by Letters Patent is :r

1. In a rotary engine, the combination with the shaft to be drivenfof an annular cylinder, pistons secured to the shaft and revolvin in said cylinder, radial slides dividing t%e cylinder into tightly closed up compartments and adapted to open to permit the'passage of the pistons" from one compartment into the other, and a compressor to receive the compressed fluid from one compartment and to. discharge the same into the other.

2. In a rotary engine, the combination with the shaft to be driven, of'an annular cylinder, pistons secured to the shaft and revolvin in said cylinder, radial slides dividing t e cylinder into tightly closed up compartments andadapted to open to permitthe passage of the istons from'one compartment into the ot er, means for automatically operatin "said slides, and a compressor to receive tie com ressed fluid from one compartment and'to ischarge the same into the other.

3. In a rotary engine, an annular cylinder, pistons revolving therein, radially reciprocating slides dividing said cylinder into ti htly closed up compartments and adapt-- e to opeii to allow the passa e of the pistons from one compartment into t e other, a compressor and means for automatically operating said compressor to cause the fluid in one compartment to be compressed into the compressor, andto be discharged from the latter into the other compartment.

4. In a rotary engine, an annular cylinder, pistons revolving therein, radially reciproeating slides dividing said cylinder Into tightly closed u compartments and adapted to open to a low the passage of the pistons from one compartment 'into the other, a comfpressor' directly communicating with oneo the compartments and consisting of a receptacle, a piston valve, a back ressure valve, a valve-controlled connection etween said receptacle and another compartment of the cylinder, and means "'for automatically operating the said piston valve to cause the with the shaft to be driven, of an annular fluid in one compartment to be com ressed into the compressor and to be disc arged from the latter into the other compartment.

5.. Ina rotary engine, the combination cylinder, pistons revolving therein, radially reciprocating slides dividing said cylinder into tightly closed up compartments, a compressor directly communicating with one of the compartments and consisting of a receptacle, a piston valve working in said receptacle, a back pressure valve, 11 valve contr'oll'ed connection between the rece tacle and another compartment of the cylinder, and means for operating the piston valve of said compressor.

'6. In a rotary engine, the combination with thev shaft, of an annular cylinder having' recessesin its outer wall, istons work ing therein, spring actuated sli es projecting through the recesses of the cylinder and dividing the latter into closed up compartments and adapted to open to allow the pas sage of the pistons from one compartment into the other, and a compressor to receive the coin ressed fluid from one compartment and to discharge the same into the other.

7. In a rotary engine, the combination with the shaft, of an annular cylinder having recesses in its, outer wall, (pistons work ing therein, spring actuated sli es projectin through the recesses of the cyllnder an dividing the latter into closed up compart ments and adapted to open to ,allow, the passage of the istons from one compartment into the ot er, a compressor to receive the compressed fluid from one compartment and to discharge the same into the other, and means for automatically operating said compressor.

8. In a rotary engine, the combination with the shaft, of an annular cylinder having recesses in its outer wall, pistons revolving therein, spring actuated slldes projecting through the outer recesses of the cylinder and dividing the latter into closed up comvpartments and adapted to open to allow the passage of the pistons from one compartment into the other, means for automatically operating said slides, a compressor to receive the compressed fluid from one compartment and to discharge the same into the other, and means for automatically operating said compressor. 4

9. In a rotary engine, the combination with the shaft, of an annular cylinder having recesses in its outer wall, pistons revolving therein, spring actuated slides slidably borne in the outer recesses of the cylinder and dividing .the latter into closed lip compartments, casings secured to the cylinder, pistons working therein, cross bars secured to said pistons, rods carried by said bars, rollersat the free ends of said rods,

cam disks secured to the above-named shaft and coiiperating with said rollers, and cans; ing the slides to open to let the pistons pass from one compartment into the other.

'10. In a rotary engine, the combination with the'shaft to be driven, of an annular cylinder, pistons revolvin therein, radially reciprocating slides divi ing said cylinder into tightly closed up compartments, a compressor directly communicating with one of the, compartments and consisting of a receptacle, a piston valve working in said receptacle, a back prwsure valve, a valve-controlled connection between the. receptacle e-eao T with the shaft to be driven, ofan annular cylinder, pistons secured to said shaft and revolvin in said cylinder, radially reciprocating s ides dividing said cylinder into tightly closed up com artm'ents, a coinpressor to receive the' uid from one com-- partment and compress and discharge the same into the other, cam disks secured to the shaft for operating the slides, gears secured to the shaft for 0 crating the compressor and ventilating blades formed on said .cam disks and gears to cool the engine.

In testimony whereof we afiix our signatures in presence of two witnesses.

' JOSEPH JAGERSBERGER.

ANTON ZEMANN. Witnesses: I

' ARTHUR F. LERDEN,

EnwAnn E. TREUMANN. 

